Severin, Daniel ; Balanzat, E. ; Ensinger, Wolfgang ; Trautmann, C. (2010)
Outgassing and degradation of polyimide induced by swift heavy ion irradiation at cryogenic temperature.
In: Journal of Applied Physics, 108 (2)
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Polyimide foils were irradiated with energetic Kr (740 MeV) and Pb (890 MeV) ions at cryogenic temperature (12 K). Beam-induced degradation processes were monitored by residual gas analysis and online infrared spectroscopy. The outgassing components observed at low irradiation temperatures differ in quantity but are similar in mass distribution to those identified at room temperature exposure. Besides CO as major volatile fragment, a significant contribution of short hydrocarbons like C2Hx is released. In situ infrared spectroscopy indicates accumulation of CO and CO2 molecules at 12 K in the foils. During heat-up cycles, most of these frozen gases become mobile and outgas at a temperature between 35 and 55 K. The study is motivated by the application of polyimide foils as insulating material in high radiation environment of the future accelerator facility for antiproton and ion research (FAIR).
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2010 |
| Autor(en): | Severin, Daniel ; Balanzat, E. ; Ensinger, Wolfgang ; Trautmann, C. |
| Art des Eintrags: | Bibliographie |
| Titel: | Outgassing and degradation of polyimide induced by swift heavy ion irradiation at cryogenic temperature |
| Sprache: | Englisch |
| Publikationsjahr: | 15 Juli 2010 |
| Verlag: | American Institute of Physics |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of Applied Physics |
| Jahrgang/Volume einer Zeitschrift: | 108 |
| (Heft-)Nummer: | 2 |
| URL / URN: | http://link.aip.org/link/JAPIAU/v108/i2/p024901/s1&Agg=doi |
| Kurzbeschreibung (Abstract): | Polyimide foils were irradiated with energetic Kr (740 MeV) and Pb (890 MeV) ions at cryogenic temperature (12 K). Beam-induced degradation processes were monitored by residual gas analysis and online infrared spectroscopy. The outgassing components observed at low irradiation temperatures differ in quantity but are similar in mass distribution to those identified at room temperature exposure. Besides CO as major volatile fragment, a significant contribution of short hydrocarbons like C2Hx is released. In situ infrared spectroscopy indicates accumulation of CO and CO2 molecules at 12 K in the foils. During heat-up cycles, most of these frozen gases become mobile and outgas at a temperature between 35 and 55 K. The study is motivated by the application of polyimide foils as insulating material in high radiation environment of the future accelerator facility for antiproton and ion research (FAIR). |
| Freie Schlagworte: | carbon compounds, cryogenics, infrared spectra, ion beam effects, outgassing, polymer films, spectrochemical analysis |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Materialanalytik 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften |
| Hinterlegungsdatum: | 24 Aug 2010 15:44 |
| Letzte Änderung: | 05 Mär 2013 09:36 |
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